Pressure Sewer Demonstration

by Italo G. Carcich, (A.M.ASCE), Sr. Sanitary Engr.; Envir. Quality Res. Unit, New York State Dept. of Envir. Conservation, Albany, NY,
Leo J. Hetling, (M.ASCE), Dir.; Envir. Quality Res. Unit, New York State Dept. of Envir. Conservation, Albany, NY,
R. Paul Farrell, Sr. Advisor; Wastewater Systems, Envir./One Corp., Schenectady, NY,

Serial Information: Journal of the Environmental Engineering Division, 1974, Vol. 100, Issue 1, Pg. 25-40

Document Type: Journal Paper


A pressurized sewer system was extensively tested during a 13-1/4 month period in Albany, NY. This new concept consisted of Grinder Pump (GP) units, newly developed and capable of macerating most wastewater solids to less than 1/4 in. in diameter, and small diameter, nonmetallic pipes. The pressurized sewer system, serving 12 single family houses, was constructed using plastic pipes, 1-1/4 in. in diameter for the pressure sewer laterals and 1-1/4 in. to 3 in. for the pressure sewer main. Operational data, which were automatically and continuously recorded, are presented and graphically illustrated; as well as results from a very extensive biological, chemical, and physical analysis study performed on the pressurized sewer effluent. The system's economics, derived from the Albany demonstration, are examined and reflect the present day installation cost of a pressure sewer system. Recommendations are made toward improving the operational and maintenance phases of a pressurized sewer system.

Subject Headings: Sewers | Plastic pipes | Lateral pressure | Pumping tests | Wastewater management | Pipe sizes | Residential buildings | Pressure pipes | New York | United States

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